AnFI - you keep making yourself look like a petulant child - I
did understand this before and you
have not led me to make any fundamental change in how I believe a helicopter works. The fact that you linked to an article which I used to refute your assertions was just fun
I had read the text books a long time (about 21 years ago when I did my A2) before you started blathering about how rotors don't flap.
I hear rumours that you are an experienced instructor - well, based on what you have written on pprune on this and other subjects, you must have some very confused students.